I pronounce it as "Eddie".
And every time I hear Caesar's name said "properly" I think of a German king with a handlebar mustache and pointy helmet.
Well, that's because the German's derived their word for "Emperor" from the Latin "Caesar" just as the Ruskies did for their word "Tsar" which was originally "Czar", obviously derived again from "Caesar".
The thinking, in both instances, at the time was that claiming a title equal with the Roman Caesars made you more of an absolute badass though in reality these other "empires" were rubbish in comparison (to Ancient Rome).
The ironic is thing is that when these titles became in vogue a true Roman Caesar was still alive and ruling over Constantinope (until 1453, anywho). An even more interesting fact is that since the Byzantine Empire was a direct extension of the Roman Empire, and Byzantines referred to themselves as Romans (and why shouldn't they?), the Roman Senate existed as political body for nearly 2,000 years. Isn't that incredible?
/historylesson